| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.helper.aoa; |
| |
| import static com.android.helper.aoa.AoaDevice.GOOGLE_VID; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.mockito.ArgumentMatchers.any; |
| import static org.mockito.ArgumentMatchers.eq; |
| import static org.mockito.Mockito.doReturn; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.spy; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import com.google.common.collect.Sets; |
| import com.sun.jna.Memory; |
| import com.sun.jna.Pointer; |
| import com.sun.jna.ptr.PointerByReference; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| import java.util.HashSet; |
| |
| /** Unit tests for {@link UsbHelper} */ |
| @RunWith(JUnit4.class) |
| public class UsbHelperTest { |
| |
| private static final String SERIAL_NUMBER = "serial-number"; |
| private static final int ACCESSORY_PID = 0x2D00; |
| |
| private UsbHelper mHelper; |
| |
| private IUsbNative mUsb; |
| private UsbDevice mDevice; |
| |
| @Before |
| public void setUp() { |
| // create dummy pointer |
| Pointer pointer = new Memory(1); |
| |
| mUsb = mock(IUsbNative.class); |
| // populate context when initialized |
| when(mUsb.libusb_init(any())) |
| .then( |
| invocation -> { |
| PointerByReference context = |
| (PointerByReference) invocation.getArguments()[0]; |
| context.setValue(pointer); |
| return null; |
| }); |
| // find device pointer when listing devices |
| when(mUsb.libusb_get_device_list(any(), any())) |
| .then( |
| invocation -> { |
| PointerByReference list = |
| (PointerByReference) invocation.getArguments()[1]; |
| list.setValue(pointer); |
| return 1; |
| }); |
| |
| // device is valid, has right serial number, and is in accessory mode by default |
| mDevice = mock(UsbDevice.class); |
| when(mDevice.isValid()).thenReturn(true); |
| when(mDevice.getSerialNumber()).thenReturn(SERIAL_NUMBER); |
| when(mDevice.getVendorId()).thenReturn(GOOGLE_VID); |
| when(mDevice.getProductId()).thenReturn(ACCESSORY_PID); |
| |
| mHelper = spy(new UsbHelper(mUsb)); |
| // always return the mocked device |
| doReturn(mDevice).when(mHelper).connect(any()); |
| } |
| |
| @Test |
| public void testContext() { |
| // initialized on creation |
| verify(mUsb, times(1)).libusb_init(any()); |
| |
| // exited on close |
| mHelper.close(); |
| verify(mUsb, times(1)).libusb_exit(any()); |
| } |
| |
| @Test |
| public void testCheckResult() { |
| // non-negative numbers are always valid |
| assertEquals(0, mHelper.checkResult(0)); |
| assertEquals(1, mHelper.checkResult(1)); |
| assertEquals(Integer.MAX_VALUE, mHelper.checkResult(Integer.MAX_VALUE)); |
| } |
| |
| @Test(expected = UsbException.class) |
| public void testCheckResult_invalid() { |
| // negative numbers indicate errors |
| mHelper.checkResult(-1); |
| } |
| |
| @Test |
| public void testGetSerialNumbers() { |
| assertEquals(Sets.newHashSet(SERIAL_NUMBER), mHelper.getSerialNumbers(false)); |
| |
| // device list and device were closed |
| verify(mDevice, times(1)).close(); |
| verify(mUsb, times(1)).libusb_free_device_list(any(), eq(true)); |
| } |
| |
| @Test |
| public void testGetSerialNumbers_aoaOnly() { |
| when(mDevice.isAoaCompatible()).thenReturn(false); |
| assertEquals(Sets.newHashSet(SERIAL_NUMBER), mHelper.getSerialNumbers(false)); |
| assertEquals(new HashSet<>(), mHelper.getSerialNumbers(true)); |
| |
| when(mDevice.isAoaCompatible()).thenReturn(true); |
| assertEquals(Sets.newHashSet(SERIAL_NUMBER), mHelper.getSerialNumbers(false)); |
| assertEquals(Sets.newHashSet(SERIAL_NUMBER), mHelper.getSerialNumbers(true)); |
| } |
| |
| @Test |
| public void testGetDevice() { |
| // valid connection was found and opened |
| assertEquals(mDevice, mHelper.getDevice(SERIAL_NUMBER)); |
| |
| // device list was closed, but not connection |
| verify(mDevice, never()).close(); |
| verify(mUsb, times(1)).libusb_free_device_list(any(), eq(true)); |
| } |
| |
| @Test |
| public void testGetDevice_invalid() { |
| when(mDevice.getSerialNumber()).thenReturn(null); |
| |
| // valid device not found |
| assertNull(mHelper.getDevice(SERIAL_NUMBER)); |
| |
| // connection and device list were closed |
| verify(mDevice, times(1)).close(); |
| verify(mUsb, times(1)).libusb_free_device_list(any(), eq(true)); |
| } |
| |
| @Test |
| public void testGetAoaDevice() { |
| when(mDevice.isAoaCompatible()).thenReturn(true); |
| assertNotNull(mHelper.getAoaDevice(SERIAL_NUMBER)); |
| } |
| |
| @Test |
| public void testGetAoaDevice_incompatible() { |
| when(mDevice.isAoaCompatible()).thenReturn(false); |
| assertNull(mHelper.getAoaDevice(SERIAL_NUMBER)); |
| } |
| } |